Hello,
I'm writing a performance monitoring data collector for Orca (www.orcaware.com) for FreeBSD 4- and 5-.
I'm not sure about the correct values in the process description to get a picture as accurate as possible of the cpu usage of different processes. I've seen that top uses p_runtime (FreeBSD 5 and FreeBSD 4), but I'm not sure if the value would be really useful.
You can see a snapshot of the work in progress at:
ftp://borja.sarenet.es/pub/freebsd4-devilator.pdf ftp://borja.sarenet.es/pub/freebsd5-devilator.pdf
I'm intending to do something more complete than the classical "orcallator" for Solaris. Namely, I am going to plot:
- System processes resource usage (hopefully useful to spot bottlenecks, and hopefully useful for the system developers)
- Resource usage by a set of processes specified by the user. It will have a configuration file with {process name, regular expression} pairs. Processes whose name matches the regular expression will get their own graph with %user/%system, etc cpu times, and probably I/O statistics, memory statistics, so that you can know wether your (for example) smtpd processes are getting more resources, or the memory hogs are the httpd's, etc.
- MBUF statistics
- Network statistics (connections, TCP/UDP/ICMP statistics...)
- Various caches and VM
BTW, I'm having serious issues with a machine with very big directories, and I've been playing with the dirhash configuration, setting up a very big cache. It would be useful to have some statistics so that I can plot the number of hits/misses to that dirhash cache, etc.
Please send me suggestions, ideas, problems seen in these examples. The software will obviously be released to the community, and I plan to make the first release available in one or two weeks.
I know that there may be too many graphs in the page, and I will probably add some switches to turn graphs on/off.
Best regards,
Borja.
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